xo-umbrella2/xo-alloc2/include/xo/alloc2/gc/ICollector_Xfer.hpp

86 lines
2.9 KiB
C++

/** @file ICollector_Xfer.hpp
*
* @author Roland Conybeare, 2025
**/
#pragma once
#include "ACollector.hpp"
#include "AGCObject.hpp"
namespace xo {
namespace mm {
/** @class ICollector_Xfer
*
* Adapts typed ACollector implementation @tparam ICollector_DRepr
* to type-erased @ref ACollector interface
*
* See for example
* @ref ICollector_DX1Collector
**/
template <typename DRepr, typename ICollector_DRepr>
struct ICollector_Xfer : public ACollector {
public:
using Impl = ICollector_DRepr;
using size_type = ACollector::size_type;
static const DRepr & _dcast(Copaque d) { return *(const DRepr *)d; }
static DRepr & _dcast(Opaque d) { return *(DRepr *)d; }
// from ACollector
// const methods
typeseq _typeseq() const noexcept override { return s_typeseq; }
size_type allocated(Copaque d, generation g, role r) const noexcept override {
return I::allocated(_dcast(d), g, r);
}
size_type reserved(Copaque d, generation g, role r) const noexcept override {
return I::reserved(_dcast(d), g, r);
}
size_type committed(Copaque d, generation g, role r) const noexcept override {
return I::committed(_dcast(d), g, r);
}
bool is_type_installed(Copaque d, typeseq tseq) const noexcept override {
return I::is_type_installed(_dcast(d), tseq);
}
// non-const methods
bool install_type(Opaque d, const AGCObject & iface) override {
return I::install_type(_dcast(d), iface);
}
void add_gc_root_poly(Opaque d, obj<AGCObject> * p_root) override {
I::add_gc_root_poly(_dcast(d), p_root);
}
void remove_gc_root_poly(Opaque d, obj<AGCObject> * p_root) override {
I::remove_gc_root_poly(_dcast(d), p_root);
}
void request_gc(Opaque d, generation upto) override {
I::request_gc(_dcast(d), upto);
}
void forward_inplace(Opaque d,
AGCObject * lhs_iface, void ** lhs_data) override {
I::forward_inplace(_dcast(d), lhs_iface, lhs_data);
}
private:
using I = Impl;
public:
static typeseq s_typeseq;
static bool _valid;
};
template <typename DRepr, typename ICollector_DRepr>
xo::facet::typeseq
ICollector_Xfer<DRepr, ICollector_DRepr>::s_typeseq = facet::typeseq::id<DRepr>();
template <typename DRepr, typename ICollector_DRepr>
bool
ICollector_Xfer<DRepr, ICollector_DRepr>::_valid = facet::valid_facet_implementation<ACollector, ICollector_Xfer>();
} /*namespace mm*/
} /*namespace xo*/
/* end ICollector_Xfer.hpp */